Brush or broom



Dec. 1924- 1,517g852 H. D. NEFF BRUSH QR BROOM Filed May 26, 1922Patented Dec. 2, 1924.

UNITED STTES HARRY DRAZPER NEFF, OF CAMBRIDGE, MAQSACHUSETTS, ASSIGNORT0 .RE-IEILI'I BROOM COMPANY, 015 BOSTON, MA5SAOHUSETT$, A GORPQRATIONOF MASSAGHU- SETTS.

BRUSH 0R BROOM.

Application filed May 26,

To all whom it may concern:

Be it known that I, HARRY DRAPER NEFF, a citizen of the United States,and a resident of Cambridge, in the county of Middlesex and State ofMassachusetts, have invented an Improvement in Brushes or Brooms, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, like letters on the drawings representinglike parts.

My present invention relates to brooms and brushes, and moreparticularly to an improved form of sectional or unit type of brush orbroom.

In the present commercial types of sectional brushes, particularlycircular sectional brushes, the cost of upkeep is an importantitem. Afactor tending to unduly increase the cost of upkeep is the tendency ofthe fibres, bristles, and the like, of the brushes to be thrown 05before being entirely worn out. With a view to reducing the final costand cost of upkeep of brushes of this type, and to further simplify thevarious processes of manufacture of sectional brooms and brushes, I havedevised the subject matter of my present invention and have perfected abroom or brush unit which may be made of any size or of any desiredmaterial and in which it will be practically impossible for theparticles of material such as fibre, broom corn, bristles, wire, or thelike, to be thrown off from the brush or shed, as it is termed in thisart. This particular feature of novelty is of great importance as, intheconstructionof a circular brush such as used in connection, with buflingwheels for metal and the like, the brushes rotate at the extremely highsurface speed and heretofore serious accidents haveoccured to theworkmen by the throwing out or shedding of bristles or wire forming thebrushing material, which material has been projected at a tangent fromthe rapidly rotating wheel and has caused 1 serious injury to the eyesof the'workmen, in a great many instances the sight of the eye beingdestroyed. Agaiin'I am enabled, by constructing a brush unit accordingto my present invention, to construct a holder for a circular brush thatis extremely simple in construction and easy to manufacture, andexceedingly efficient in operation. Also ,tures of the construction1922. Serial No. 563,853.

I make make brooms of brush or push type in which my improved brushunits are employed, the broom or brush head being ex tremely simple,endurable, andit may be made of any length and width.

Various other advantages and novel feaand arrangement of parts, inaddition to those above pointed out, will appear as the description ofthe invention progresses.

In the accompanying drawings illustrating preferred embodiments of myinvention.

Fig. 1 is an elevation of one form of my improved brush unit;

F 2 is a front elevation of a circular brush holder;

Fig. 3 is an end elevation of Fig. 2 with one of the end plates removedand with a brush unit shown in position:

Fig. lis an end elevation of another form of my improved brush unit;

Fig. 5-is a front elevation of Fig. 4;

Fig. 6 is an end elevation of a circular brush holder similar incharacter to the holder shown in Fig. 2 and 3, but adapted to hold themodified form of brush unit illustrated in Figs. 4: and 5, the endplates of the and a brush unit ofthe type shown in Figs. 4 and 5 inposition;

Figs. 7, 8, 9, l0, and 11 illustrate a further form of improved brushunit and the method of manufacturing the same, Fig. 7 being an endelevation of the brush unit, Fig. 8 a central, vertical, longitudinalsection therethrough, Fig. 9 a length of tube from which the brushclamping means is made; Fig. 10 is a view of Fig. 9 after the slottingoperation has been performed, and Fig. 11 a sectional view of theclamping means after the bending operation has taken place and prior toits incorporation in a brush unit.

Referring to the drawings, and particularly to Figs. 1, 2, and 3, 10designates a bundle of wires or fibrous material, or any other suitablebrush or broom making material, folded upon itself about a pin or peg 11and such bundle firmly clasped to hole the same in position and formedto firmly clasp the pin 11 by means of a gripping ring or wire 12. Theresulting structure is a broom or brush unit in which the fibres, orother material of which the bundle is c0mcircular brush holder beingremoved posed, being folded upon itself, will prevent the bundle fromshedding its fibres as is apt to be the case when the bundle of fibresis clasped at one end. In using this form of improved bundle to form,say, a cireular brush, I preferably provide a shaft 13 on which ispositioned a flange 14: provided with a plurality of equally spacedholes 15, the number of holes depending on the diameter of the brushdesired and on the thickness or size of the bundles 10 to be employed.The perforated plate 1 1 abuts against a nut 16 screwed onto a threadedportion 17 on the shaft 13, and adjacent the plate 14 is a block 18which may be of wood or any other suitable material and provided with aplurality of substantially U shaped cut-out portions 19, the number ofthese cutout portions 19 being equal in number to the number of holes 15in the plate 1 1 and of a size suitable for holding a bundle 10. Oneface of this block 18 abuts against one face of theplate 1 1-, and onthe opposite face of'the block 18 fits a plate 20 similar in allrespects to the plate 1 1. The plates 14 and 20 and the block 18 arefirmly held in position on the shaft 13 and against the nut 16 by meansof a nut 21 screwing onto a threaded portion 22 on said shaft 13. Toassemble this form of circular brush, the plate 20 is removed and aplurality of bundles 10 fitted into the U shaped cut-outs 19 in theblock 18, one end of the pins 11 of the bundles 10 fitting into theperforations 15. When all the U shaped cut-outs 19 are filled,

the plate 20 is placed in position, the other end of the pins 20 fittinginto the holes 15 in such plate 20, and the entire apparatusserewed'together in position by the nut 21.

Referring now to Figs. 4, 5, and 6, 23 designates abundle similar incharacteristics to the bundle 10 and provided with a clamping or holdingring 12 as in the case of such bundle 10. In this form, however, Idispense with the pin that was employed in the form shown in Fig. 1.Assuming that ,it is desired to form a circular brush fromthismodification of my invention, having an outward appearance similarto that shown in Fig. 3, I employ a circular plate 24 amounted in theusual manner on shaft 13 and on oneface of this plate 2a and in acircle-of 'anysuitable diameter, the diameter depending onthe externaldiameter of the plate-24c, and on the number of bundles 10 it is desiredto employ in building the brush, and rivetted'in such plate a plurality"of equally spaced pins 25 of a diameter fsuchas to fit the opening oreye at the top fof the bundle 23 and of any suitable length.

On the shaft 13, and adjacent one face of the plate 2 1, is a member 18provided with a plurality fof substantially U shaped cut-outs 19, thenumber of cut-outs 19 being equal to "the number of pins-25 and of asize suitable to receive the eye end of the bundle 2?. A plurality ofbundles, one for each pin 25, are inserted in position and a plate 20 isplaced on the shaft 13 and against. the exposed face of the member 19,the pins 25 fitting into the perforations 15 in the plate 20. After thislast operation. the members 2 1, 18, and 20 are forced together and heldinposition in a manner similar to that described with respect to Figs. 2and 3.

Referring now to Figs. 7. 8, 9, 10 and 11 wherein I have shown a form ofmy inven tion in which it may be desirable to form the eye of the bundle26 about a metallic member, I have shown a length of tube 27, in Fig. 9,bevelled, as shown at 28, at each end. of this tube. After bevelling, aplurality of saw-cuts 29 on each end of the tube 27 are provided, thedepth of these saw-cuts being such as to leave the central portion 30 ofthe tube 27 of sufiicient length to account for the depth or thicknessof the bundle 26. as shown in Fig. 8, and the saw cuts are made in sucha manner as to cut away practically one-fourth of the circumference ofthe tube and leave three equally spaced arms 31 at each end of thecentral portion 30. The next development of the tube 27 is shown in Fig.11 where the spaced arms 31 are folded over in substantially a halfcircle. In this condition, the bundle 26 is folded on itself and aroundthe central portion 30 of the tube 27 and the outstanding or straightarms 31 are folded. as shown in dotted lines in Fig. 11 and in fulllines in Fig. 8 firmly clasping the fibrous or other nuiterial of thebundle 26 at a plurality of points. In this folding over operation. thebevelled portions 28 of the ends of the arms 31 assist in guiding thematerial of which the bundles 26 are composed, into and under such arms.The form of the invention just described with respect to Figs. 7, 8, 9,10 and 11 may be employed in building a circular brush of the type shownin Figs. 2 and 3 by first inserting through the central portion 30 ofthe tube 27 a pin similar in character to the pin 11 in Fig. 1, or maybe employed with the member 24:, as shown in Fig. 6.

Various other modifications other than those illustrated in the drawingsand described above, will suggest themselves to those skilled in theart, and I do not limit myself, therefore, to the exact constructionsabove described herein other than as set forth in the appended claim. Mypresent. invention is furthermore suitable for use with brooms orbrushes of any kind, paint brushes and the like, as well as brooms andcleaning brushes. This is an important feature of the present unit, thesame being universally applicable on brushes or brooms for all purposes.

Having thus described my invention, What central portion of said tubeand at a point I claim as new is: intermediate the ends of said bundle,said In an improved broom or brush unit, the arms folded over saidbundle to firmly clasp 10 combination of a metallic tube, a pluralitythe fibres, or other material, in position. of arms extending outwardlyfrom each end In testimony whereof, I have signed my thereof, a bundleof fibres, or other suitable name to this specification. brush makingmaterial, folded about the HARRY DRAPER NEFF.

